Tropical Weather Outlook: Tuesday, 23 June 2026 (8 am)

The Meteorological Services under the Maurice Bishop International Airport (MBIA) and the Grenada Airports Authority (GAA) have released an active tropical weather update for the tropical North Atlantic Ocean, Caribbean Sea, and Gulf of Mexico, covering a designated area of special interest spanning 10–20°N latitude and 40–65°W longitude. As of the latest advisory, two distinct tropical waves are currently moving westward across the Atlantic basin, with varying levels of convective activity and forecast impacts for the region.

The first system, labeled Tropical Wave 1, is a disturbance originating in the central Atlantic. Its center is positioned along the 58°W meridian, stretching southward from 16°N latitude. The wave is progressing westward at a steady speed of approximately 15 knots. Meteorological observations show scattered moderate convection, with isolated strong thunderstorm activity concentrated between 06°N and 10°N latitude, and between 53°W and 60°W longitude. Based on its current forward momentum, forecasters project the core axis of Tropical Wave 1 will pass over the island nation of Grenada between later this evening and Wednesday. As the wave moves across the island, residents can expect an increase in overall cloud cover and scattered shower activity through the period.

The second system, Tropical Wave 2, is located further east across the tropical Atlantic, centered near the 46°W meridian and extending southward from 15°N latitude. This wave is moving slightly faster than its central Atlantic counterpart, tracking west at speeds between 15 and 20 knots. Scattered moderate convective activity has been observed for this system, confined between 06°N and 09°N latitude between 44°W and 52°W longitude. Unlike Tropical Wave 1, current meteorological modeling and conditions do not support the development of tropical cyclone activity from this system over the next 48 hours.

This official advisory notes that the next scheduled update on the activity of these tropical waves will be issued to the public at 2 pm.

This weather advisory is published in partnership with NOW Grenada, which notes that it holds no liability for opinions, statements, or third-party contributor content included in public advisories. Users may report any inappropriate content related to these updates through official reporting channels.